Sucker Rod Manufacturing in China - API Spec 11B Suppliers and Factory for Durable Rod Pumping Systems
Key Applications Include
Efficient power transmission in continuous rod pumping cycles
Resistance to alternating tensile and compressive stresses within oilwell bores
Reliable operation in wells with corrosive fluids, high deviation angles, or abrasive formations
Manufactured to the rigorous requirements of API Spec 11B, each sucker rod undergoes quenching and tempering, ultrasonic inspection, magnetic particle testing, and dimensional verification to ensure integrity throughout the string. TAKELO also provides couplings, pony rods, and specialized surface treatments, such as copper plating, nitriding, or Ni-P alloy coating, to mitigate corrosion and extend fatigue life.
With extensive deployment across global oilfields, TAKELO sucker rods have demonstrated superior run-time performance, reduced failure rates, and compatibility with advanced rod-pump optimization technologies. These capabilities make them a dependable choice for both shallow stripper wells and deep, high-load pumping applications.
Sucker Rod & Pony Rod Specification
| Size | Thread D. | Length | Outside Diameter of Pin Shoulder | Length of Thread | Length of Wrench Square | Width of Wrench Square |
|---|---|---|---|---|---|---|
| (in) | (in) | (ft) | (mm) | (mm) | (mm) | (mm) |
| 5/8 | 15/16 | 2 4 6 8 10 25 30 | 31.8 | 31.75 | ≥ 31.8 | 22.2 |
| 3/4 | 11/16 | 38.1 | 36.5 | 25.4 | ||
| 7/8 | 1 3/16 | 41.3 | 41.28 | |||
| 1/1 | 1 3/8 | 50.8 | 47.63 | ≥ 38.1 | 33.3 | |
| 1 1/8 | 1 9/16 | 57.2 | 53.98 | ≥ 41.3 | 38.1 | |
| Grade | Yield Strength | Tensile Strength Rm (Mpa) | Percentage Elongation A | Contraction Percentage of Area Z (%) | Impact Toughness | |
| Rel (Mpa) | (%) | a(3/cm2) | ||||
| C | ≥ 414 | 620-793 | ≥ 12 | ≥ 55 | ≥ 70 | |
| D | ≥ 620 | 794-965 | ≥ 10 | ≥ 505 | ≥ 58.85 | |
| K | ≥ 414 | 620-793 | ≥ 12 | ≥ 55 | ≥ 70 |
Polished Rod Specification
| Size | Rod D. | Length | Thread D. (in) | Thread Length (mm) | Small Diameter Taper of Thread | ||
|---|---|---|---|---|---|---|---|
| (in) | (mm) | (ft) | |||||
| 1 | 25.4 | 30 25 24 16 |
15/16 | 28.58 | 9° | ||
| 1 Upset | 15/16 | 1 1/16 | 31.75 | 36.5 | |||
| 1/8 | 28.6 | 15/16 | 1 1/16 | 34.93 | |||
| 1-1/8 Upset | 1 3/16 | 1 3/8 | 41.28 | 47.63 | |||
| 1 1/4 | 31.8 | 1 3/16 | 34.93 | ||||
| 1-1/4 Upset | 1 3/8 | 1 9/16 | 47.63 | 53.98 | |||
| 1 1/2 | 38.1 | 1 3/8 | 44.45 | ||||
| Grade | Yield Strength Rel (Mpa) | Tensile Strength Rm (Mpa) | Percentage Elongation A (%) | Contraction Percentage of Area Z (%) | Impact Toughness ak(J/cm2) | ||
| 1 | ≥ 414 | 620-827 | ≥ 12 | ≥ 55 | ≥ 70 | ||
| 2 | General | ≥ 586 | 655-1102 | ≥ 10 | ≥ 50 | ≥ 58.8 | |
| Anti-corrosion | ≥ 414 | ≥ 12 | ≥ 55 | ≥ 70 | |||